Wait wait wait... this is going to be enough of a beast to warrant air bags and carbon-fibre seats, yet they're going to install a sunroof?! Why would you do that to a car so obviously designed for the strip? Reducing torsional rigidity, adding mass, and destroying cockpit safety? Come on, you must have meant a rollcage or lexan windows or a fire-suppression system or something besides... a sunroof!

Nah I disagree - where are the Engineer specialists at?

It seems to me that if you install the rigid framework of a sunroof in place of flat sheet-metal you are increasing the structural integrity of the roof area. ...not reduce torsional rigidity or destroy cockpit safety. If it were a cockpit safety issue, GM wouldn't offer the Sunroof as an option.